30460189 has 4 divisors (see below), whose sum is σ = 30472156. Its totient is φ = 30448224.

The previous prime is 30460187. The next prime is 30460193. The reversal of 30460189 is 98106403.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4020025 + 26440164 = 2005^2 + 5142^2 .

It is a cyclic number.

It is not a de Polignac number, because 30460189 - 2¹ = 30460187 is a prime.

It is a super-2 number, since 2×30460189² = 1855646227831442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30460189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30460181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474 + ... + 7819.

It is an arithmetic number, because the mean of its divisors is an integer number (7618039).

Almost surely, 2^30460189 is an apocalyptic number.

It is an amenable number.

30460189 is a deficient number, since it is larger than the sum of its proper divisors (11967).

30460189 is an equidigital number, since it uses as much as digits as its factorization.

30460189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11966.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 30460189 is about 5519.0750130796. The cubic root of 30460189 is about 312.3039888672.

The spelling of 30460189 in words is "thirty million, four hundred sixty thousand, one hundred eighty-nine".